Question

An open water tank 12m long 9m wide and 4m deep is to be made. Determine the cost of iron sheet required at the rate of Rs. 25 per m, if the sheet is 1.5 m wide.

Note- Show in steps​

Answer 1

Answer:

Rs . 6400 is the cost of iron required

Step-by-step explanation:

Length l=12m

Breadth b=9m

Height h=4m

⇒ Total surface of the tank =2(l×b+b×h+h×l)

                                               =2(12×9+9×4+4×12)

                                               =2×(108+36+48)

                                               =192×2

                                               =384m2

⇒ Length of the sheet required =384 / 1.5

                                                       =256 m

∴ Cost of the sheet =256×25

                                  =Rs .6400

∴ Total cost of the sheet =Rs.6400

Hence, the answer is Rs. 6400